I do not understand how to find the margain of error please help!

Does the Public Support Sin Taxes? A survey of 1000 adults in the US conducted in March 2011 asked "Do you favor or oppose 'sin taxes' on soda and junk food?" The proportion in favor of taxing these foods was 32%. I 1"32% favor 'sin taxes' on soda, junk food", Rasmussen Reports, April 1, 2011. Correct. (a) Find a 99% confidence interval for the proportion of US adults favoring taxes on soda and junk food. Round your answers to three decimal places. The 99% confidence interval is 0.282 to 0.358 Hint eTextbook and Media Incorrect. (b) What is the margin of error? Round your answer to one decimal place. margin of error = i ! %